The key now is identifying those areas of your life that you want to change. Not being confident in one area of your life can negatively affect all areas of your life. How do you feel about the way you look, the work that you do, the relationships that you have, the food you eat, the clothes you wear? What things drag you down? What things lift you up?
If you want to build your self-esteem, then you need to start with secret number 1: self-awareness. That means looking at the way you live your life, the way you think and the way you feel. As you get to know yourself better you will start to recognise patterns of behaviour, responses or attitudes that make you unhappy.
And once you start to recognise what makes you unhappy you can start making positive changes. And the first of those changes needs to be in the way you think.